CN210240574U

CN210240574U - Butterfly valve for water pipe

Info

Publication number: CN210240574U
Application number: CN201920807358.3U
Authority: CN
Inventors: Liangliang Xu; 徐亮亮; Weihua Yao; 姚维华
Original assignee: Tongling Xingrong Valve Fittings Co ltd
Current assignee: Tongling Xingrong Valve Fittings Co ltd
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-04-03
Anticipated expiration: 2029-05-31

Abstract

The utility model discloses a butterfly valve for water pipe, including hand wheel, rotating device and connecting rod, one side of rotating device is connected with the hand wheel, the below of rotating device is provided with the connecting rod, the below of connecting rod is connected with coupling assembling, the below of coupling assembling is connected with the support column, the utility model discloses a rotating block of connecting rod lower extreme is connected with the rotation groove in the coupling assembling, convenient and fast will be because of the internal impaired rotating device that needs to be changed, change or maintain for pulling down; the utility model discloses when the connecting rod is connected with coupling assembling, the turning block rotates corresponding position back when the turning block when rotating the inslot rotation, and the circular arc piece of turning block lower extreme just gets into in the fixed orifices simultaneously, pushes up the backup pad by the spring after warping, and the circular arc piece after will connecting is firmly fixed in the fixed orifices, and very convenient fixes rotating device on coupling assembling.

Description

Butterfly valve for water pipe

Technical Field

The utility model belongs to the technical field of the butterfly valve, concretely relates to butterfly valve for water pipe.

Background

A butterfly valve, also called a flap valve, is a regulating valve with simple structure, and can be used for the on-off control of low-pressure pipeline media, namely a valve with a closing part (valve clack or butterfly plate) which is a disc and rotates around a valve shaft to achieve opening and closing, the valve can be used for controlling the flow of various fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like, and mainly plays a role in cutting off and throttling on a pipeline, the butterfly valve opening and closing part is a disc-shaped butterfly plate and rotates around the axis of the butterfly plate in a valve body so as to achieve the purpose of opening, closing or regulating, the butterfly valve is a valve which opens, closes or regulates the flow of the media by rotating the disc-shaped opening and closing part by 90 degrees in a reciprocating way, the butterfly valve has the advantages of simple structure, small volume, light weight, material consumption saving, small installation size, small driving moment, simple and convenient and rapid, the butterfly valve has the advantages that the butterfly valve is wide in use, the variety and the number of the butterfly valve are still continuously expanded, the butterfly valve is developed to high temperature, high pressure, large caliber, high sealing performance, long service life, excellent adjusting performance and one-valve multiple functions, and the reliability and other performance indexes of the butterfly valve reach higher levels.

The prior art has the following problems: the existing butterfly valve is easy to cause gear abrasion in the rotating device in a long-term use process, so that the rotating device needs to be replaced, the rotating device needs to be detached for replacement or maintenance through taking off a plurality of bolts in the replacement process, replacement is not easy, and the butterfly valve needs to be fixed through a plurality of bolts after replacement, and is very inconvenient to fix.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides a butterfly valve for water pipe has easy dismounting, firm in connection characteristics.

In order to achieve the above object, the utility model provides a following technical scheme: a butterfly valve for a water pipe comprises a hand wheel, a rotating device and a connecting rod, wherein the hand wheel is connected to one side of the rotating device, the connecting rod is arranged below the rotating device, a connecting assembly is connected below the connecting rod, a supporting column is connected below the connecting assembly, a valve body is arranged below the supporting column, and a butterfly plate is arranged on the inner side of the valve body;

coupling assembling is including rotating groove, backup pad, spring, guide way, turning block, circular arc piece, sliding tray and fixed orifices, one side of rotating the groove is provided with the guide way, the below of rotating the groove is provided with the backup pad, the below of backup pad is connected with the spring, the below of guide way is provided with the turning block, the below of turning block is provided with the circular arc piece, the surperficial inboard of backup pad is provided with the sliding tray, the below of sliding tray is provided with the fixed orifices.

Preferably, one side of the rotating groove is provided with an anti-falling block, and a rubber pad is arranged in the rotating groove.

Preferably, a sealing ring is arranged between the valve body and the butterfly plate, and the maximum rotation angle of the butterfly plate is 90 degrees.

Preferably, sliding connection is carried out through rotating groove and turning block between connecting rod and the coupling assembling, and just rotate for clearance fit between groove and the turning block.

Preferably, the support plate and the spring are fixedly connected through argon arc welding, and the support plate and the inner walls of the two sides keep a millimeter distance.

Preferably, be connected through dislocation clockwise rotation between connecting rod and the coupling assembling, and the upper end of connecting back coupling assembling is provided with the safety cover.

Preferably, the inner rotating shaft is driven by the mutual meshing of the trapezoidal gears in the rotating device through rotating the hand wheel, so that the butterfly plate is opened or closed.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a turning block of connecting rod lower extreme is connected with the rotation groove in the coupling assembling, and convenient and fast will change or maintain for pulling down because of the impaired rotating device that needs to change in inside.

2. The utility model discloses when the connecting rod is connected with coupling assembling, the turning block rotates corresponding position back when the turning block when rotating the inslot rotation, and the circular arc piece of turning block lower extreme just gets into in the fixed orifices simultaneously, pushes up the backup pad by the spring after warping, and the circular arc piece after will connecting is firmly fixed in the fixed orifices, and very convenient fixes rotating device on coupling assembling.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is the schematic diagram of the connection assembly structure of the present invention.

Fig. 3 is a schematic view of the top view structure of the connection assembly of the present invention.

Fig. 4 is a schematic view of the connecting rod structure of the present invention.

Fig. 5 is a schematic view of the butterfly plate structure of the present invention.

In the figure: 1. a hand wheel; 2. a rotating device; 3. a connecting rod; 4. a connecting assembly; 41. a rotating groove; 42. a support plate; 43. a spring; 44. a guide groove; 45. rotating the block; 46. an arc block; 47. a sliding groove; 48. a fixing hole; 5. a support pillar; 6. a valve body; 7. a butterfly plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides the following technical solutions: a butterfly valve for a water pipe comprises a hand wheel 1, a rotating device 2 and a connecting rod 3, wherein the hand wheel 1 is connected to one side of the rotating device 2, the connecting rod 3 is arranged below the rotating device 2, a connecting assembly 4 is connected below the connecting rod 3, a supporting column 5 is connected below the connecting assembly 4, a valve body 6 is arranged below the supporting column 5, and a butterfly plate 7 is arranged on the inner side of the valve body 6;

the connecting assembly 4 comprises a rotating groove 41, a supporting plate 42, a spring 43, a guide groove 44, a rotating block 45, an arc block 46, a sliding groove 47 and a fixing hole 48, wherein the guide groove 44 is arranged on one side of the rotating groove 41, the supporting plate 42 is arranged below the rotating groove 41, the spring 43 is connected to the lower portion of the supporting plate 42, the rotating block 45 is arranged below the guide groove 44, the arc block 46 is arranged below the rotating block 45, the sliding groove 47 is arranged on the inner side of the surface of the supporting plate 42, and the fixing hole 48 is arranged below the sliding groove 47.

In order to prevent the rotation from being separated and the fixing from being fixed firmly, in this embodiment, it is preferable that a separation preventing block is provided at one side of the rotation groove 41, and a rubber pad is provided in the groove of the rotation groove 41.

In order to prevent water leakage in the closed state, in the present embodiment, it is preferable that a seal ring is provided between the valve body 6 and the butterfly plate 7, and the butterfly plate 7 is rotated by 90 degrees at the maximum.

In order to facilitate connection, in this embodiment, it is preferable that the connecting rod 3 and the connecting assembly 4 are slidably connected through the rotating groove 41 and the rotating block 45, and the rotating groove 41 and the rotating block 45 are in clearance fit.

In order to facilitate fixing and secure fixing, in the present embodiment, it is preferable that the support plate 42 and the spring 43 are fixedly connected by argon arc welding, and the support plate 42 is spaced from the inner walls of both sides by one millimeter.

In order to facilitate connection and prevent dust from entering, in this embodiment, preferably, the connecting rod 3 and the connecting assembly 4 are connected by rotating clockwise in a staggered manner, and a protective cover is disposed at the upper end of the connecting assembly 4 after connection.

In order to facilitate power transmission, in the embodiment, preferably, the inner rotating shaft is driven by the mutual meshing of the trapezoidal gears in the rotating device 2 through rotating the hand wheel 1, so that the butterfly plate 7 is opened or closed.

The utility model discloses a theory of operation and use flow: the two sides of the valve body 6 are connected to the connector of the pipeline, then the hand wheel 1 is rotated to drive the rotating shaft in the rotating device 2 by the mutual meshing of the trapezoidal gears in the rotating device 2, the liquid in the pipeline is opened and throttled by the connecting rod 3, the connecting component 4 and the support column 5, thereby driving the butterfly plate 7 to rotate, when the rotating device 2 needs to be replaced, the rotating device 2 is pressed downwards to rotate anticlockwise, when the rotating block 45 moves to the guide groove 44, the connecting rod 3 is taken out by the guide groove 44, then the new rotating device 2 is pressed downwards by the guide groove 44 to deform the spring 43 at the lower end and rotate clockwise, at the moment, the arc block 46 slides in the sliding groove 47, when the rotating block 45 moves to be incapable of moving in the rotating groove 41, the arc block 46 at the lower end of the rotating block 45 just enters the fixing hole 48, very convenient be connected turning block 45 and rotation groove 41, also made things convenient for impaired rotating device 2 to change simultaneously, loosen the hand of holding connecting rod 3 slowly this moment, the spring 43 that makes the lower extreme deformation promotes backup pad 42 rebound, die arc 46 card firmly in fixed orifices 48, be connected through arc 46 and fixed orifices 48 at turning block 45 lower extreme, when turning block 45 is connected with rotation groove 41, just arc 46 is also fixed with fixed orifices 48 simultaneously, very conveniently fix rotating device 2 on coupling assembling 4.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a butterfly valve for water pipe, includes hand wheel (1), rotating device (2) and connecting rod (3), its characterized in that: a hand wheel (1) is connected to one side of the rotating device (2), a connecting rod (3) is arranged below the rotating device (2), a connecting assembly (4) is connected below the connecting rod (3), a supporting column (5) is connected below the connecting assembly (4), a valve body (6) is arranged below the supporting column (5), and a butterfly plate (7) is arranged on the inner side of the valve body (6);

coupling assembling (4) are including rotating groove (41), backup pad (42), spring (43), guide way (44), turning block (45), circular arc piece (46), sliding tray (47) and fixed orifices (48), one side of rotating groove (41) is provided with guide way (44), the below of rotating groove (41) is provided with backup pad (42), the below of backup pad (42) is connected with spring (43), the below of guide way (44) is provided with turning block (45), the below of turning block (45) is provided with circular arc piece (46), the surperficial inboard of backup pad (42) is provided with sliding tray (47), the below of sliding tray (47) is provided with fixed orifices (48).

2. The butterfly valve for water pipes according to claim 1, wherein: one side of the rotating groove (41) is provided with an anti-falling block, and a rubber pad is arranged in the rotating groove (41).

3. The butterfly valve for water pipes according to claim 1, wherein: a sealing ring is arranged between the valve body (6) and the butterfly plate (7), and the maximum rotation angle of the butterfly plate (7) is 90 degrees.

4. The butterfly valve for water pipes according to claim 1, wherein: sliding connection is carried out through rotating groove (41) and turning block (45) between connecting rod (3) and coupling assembling (4), and rotates for clearance fit between groove (41) and turning block (45).

5. The butterfly valve for water pipes according to claim 1, wherein: the supporting plate (42) and the spring (43) are fixedly connected through argon arc welding, and the supporting plate (42) and the inner walls of the two sides keep a millimeter distance.

6. The butterfly valve for water pipes according to claim 1, wherein: connecting rod (3) and coupling assembling (4) are connected through dislocation clockwise rotation between, and connect the upper end of back coupling assembling (4) and be provided with the safety cover.

7. The butterfly valve for water pipes according to claim 1, wherein: the inner rotating shaft is driven by the mutual meshing of the trapezoidal gears in the rotating device (2) through rotating the hand wheel (1), so that the butterfly plate (7) is opened or closed.